Power rotor and depth adjustment therefor



Sept. 30, 1952 B. J. DROZINSKI POWER ROTOR AND DEPTH ADJUSTMENT THEREFOR 2 SHEETS-SHEET 1 Filed Oct. 28, 1948 W mm m0 B. J. DROZINSKI POWER ROTOR AND DEPTH ADJUSTMENT THEREFOR Filed 001;. 28, 1948 Sept. 30, 1952 2 SHEETS-SHEET 2 INVENTbR. m/wsuw J mozm/r/ I BY y J45, 6i -75 A fro/Mayra Patented Sept. 30, 1952 rowan Koreans]; ner'rn AnaffisT E nr THEREFOR H iBrenifll w. :1- Dxozinskiy (iieveland bli ic- .fApplication October 28, IQ48," S-eriaI-'N.o.-56,997

The present invention relatesto aground-pulwerizing machine for conditioning soilfor-planting; I

Arr-object of the present invention is 1 to' prcvide a machine 'for working plowed ground so that dle-hing,"- harrowing or raking unnecessary to -ccndition the soil forp'lanting.

- Anotherobject of the invention-:isto provide a ground puiverizing machine in which the pulverizing-element may be easilycaised: and lowered tromwot-kingcontact with theground.

a r A further obiect of the invention :is to provide a ground pulverizing machine "in rwhichs.zthe pulwerizing element :while :in operation, may. move freely vertical relative to the framework supporting the elements to accommodate-changes:inlevel oftheground.

Other-objects and advantagessof the invention will be apparent in "thefollowing.description ofa preferred :form of: the invention, reference being "made to the accompanying.. drawingsrwhereini:

' Fig; 1 isaside :view'of;asgroundmulverizingwmachine certain partsibeing broken away;

. Eig4 is a view taken on-line Although it is to be understobdthatmyinven- Fig; '2 is atop'planrviewxof the machine shown in Fig. 1, with certain's.other;-.:par.ts:being:shawrr' broken-away;

Fig. 3 is a fragmentary side view of the ground pulverizing element; and

4-4 .of-Fig. .2.

tion canbeuembodiedf many di e t fo s of structures; for "the purpose of illustrating the invention I have shown azground pulverizing ma- 1 .lchine. indicatedgeneraliy .at 11150.; The. machine homprisesin general,. afremermdunted enrgronnd ...wheels and; adapted .tobepulledlby a tnactonjm example. A pulverizing element is carried by the frame and provisions are made whereby this element may be raised and lowered relative to the frame for moving the machine while maintaining the pulverizer inoperative and to also accommodate the pulverizer to irregularities of the ground while in operation. The frame, indicated at H,

Glaims. (ci ar- 403).

mounted at oppositeesidesi gof the machine. manne'r -desc-ribedi hereinai ter. 1

and 22:- are each formed of atwo-ucomplemefl tary shells 23 i and 24 -whicha are:.aboltedutfl ithe tra -t-he rims thereofto form housingsiortgeami .65-

'Twoparallel axles 21.and-s128i .larejournalled athe casings 2 Land 22: and gearsqfiflrand. 3,1: er

to the ends of.the"respectiyeraxles. Theseus? and 3 I :meshrespectively. with-idler 6&15123 and 34 v'zhich tare mountediinitheicassingssand r hich are in me'sh':with .one another. so that axlcsmfl at equal speeds. fl-llireierably, f theaxle 2 large sprocket 31 which is keyed to th and which i adapted 'fGOahe rotated lay the 5, =the-.drive :wheel. :Izl. Althou h is preferably rectangular and formed of channel iron welded together, and it is provided with cross braces l3 which interconnect opposite corners. An axle l5, enclosed in a tubular housing I4, is journalled to the frame by bearings l6 and the ground wheels H are mounted to opposite ends of the axle. Preferably, the frame I I is provided with a suitable coupling member for attaching the machine to the tractor, and in the present instance this coupling comprises an eye l9. 7

. The ground pulverizing element is shown generally at 20 and this element consists of two, op-

positely disposed gear casings 2 [and 22 which are tes in the same .d lItGCfiOIPflSlEXlB155071 31 I fil :of th'e eleme'ntfll awiilzIfiOiiEtt a dndicet erh sth arrowsiini'Fig. 4.. @nei-endpf the axlegz tends outwardly throughthe teasing. :22 and a ne sprocket 3'5 iskeyedthereto. ifEhe-snmcke ;is :drivenvby .a. chaingcflfiamounted:,onca elatw e wheel 51.1. 'The ratios :betweenthe diameters 1 theisprocketstirand .fi lzare such :th-atep eket 15 rotated at leastifoiir-orfive 'mes-fa-ste v(It-show .be .desirablcfoo :provi'deaa clutch :between .15 andjlthe sprocketjl whm hy mwen zsion onito..:therpulyen' 'ngelement-can .orxdiscontinuedzaszdesi a th tm e e ushown in the drawingto facilitate;

into the ground. In this connection W n thatrthespeed;ofsrotation QfajIhQ-BQQ-IES; I and-28 is such that the speed of the tines M at their ends is materially greater than the speed at which the machine is travelling overthe ground and the ratio of the diameters of the sprockets 35 and 31 should be established to bring this condition about. By this arrangement the soil will be broken up into fine pieces and any clods will be caught between the tines projecting toward one another from the spaced axles. The tines will penetrate several inches into the soil due to the weight of the casings and axles and provide an exceptionally suitable bed for planting.

Preferably, an arcuate shaped hood 43 is mounted over the pulverizing element to prevent scattering of the dirtpicked up by the tines 4|. The hood 43 is supported by brackets attached to the casings 2| and 22.

, t The pulverizing element 20 is mounted to the threaded on an adjusting-shaft 51.

v the use of my invention.

frame by a pair of arms 45 and 46 which are pivotally connected at one end to the axle l and the opposite end being pivotally connected to the forward portions of the casings 2| and 22 respectively. By this arrangement the pulverizing element may swing vertically to thereby accommodate itself to irregularities in the ground while the element is in operative position.

In order to move the machine to and from the working site'the pulverizing element may be elevated above the ground and retained in its inoperative position by a pair of wheels 48 and 49 which are mounted to the respective casings 2| and 22 by levers or bell cranks 50 and 5! which are pivoted to the respective casings as at 52- The upper ends of the bell cranks 56 and 5! are each connected to a cross bar 53 by links 54 and 55. The cross bar 53 is provided with a block 56 at the central part thereof which has a threaded opening therethrough and is The shaft 51 is journalled at one end to a bracket 58 carried by the axle housing I4 and is journalled at the opposite-end by a bracket 59 which is attached to the frame .I I. The end of the shaft 51 supported by the bracket 59 is provided with a crank 60 by which the shaft 51 may be rotated for causing the cross bar 53 to travel in one direction or the other longitudinally of the shaft.

- When the cross bar 53 is moved to the right as viewed in Fig. 1, the wheels 48 and 49 will be lowered' to the ground thereby causing the casings 2| and 22 to be raised. This elevated position is indicated in Fig. 3 and the positions of the bell cranks 50 and 51, links and 55, and cross bar 53 are illustrated in broken lines in Fig. 1. When in this position the machine may be wheeled from one place to the other with the pulverizing element in an inoperative position.

Thus, it will be seen that by my invention a relatively simple structure is provided which will thoroughly break up a top layer of soil and condition the same for planting. The machine is suitable for treating plowed ground to break up the clods and effect a leveling of the furrows so thatdisking, harrowing or raking will be un- "necessary. In some instances where the soil is of a loose nature, the machine may be used without first plowing the ground. In either event, considerable time and labor will be effected b It is to be understood that although Ihave described but one form of the invention, other forms might be adopted, all falling within the 1 scope of the claims which follow. I

I claim; I 1 A ground pulverizing machine comprising, a

4 frame; a pair of gear casings oppositely disposed from one another and located on opposite sides of the machine; a pair of tandem ground engaging rotor elements having opposite ends thereof mounted in said casings; a pair of bell cranks for supporting said gear casings at the apexes of said bell cranks; link means pivotally interconnecting said bell cranks and said frame whereby said'bell cranks and the casings supported thereby may move vertically relative to said frame; and means for simultaneously raising or lowering said gear casings relative to the round.

2. A ground pulverizing machine comprising. two main support wheels; an axle interconnecting said wheels; a frame mounted about said axle; a pair of gear casings oppositely disposed from one another and located on oppositesides of the machine; ground engaging'rotor elements disposed in tandem and having opposite ends thereof mounted in said casings; a pair ofbell cranks for pivotally and conjointly supporting said gear casings at the apexes of said bell cranks; a longitudinally extending worm shaft mounted to said frame; link means pivotally interconnecting said worm shaft and the top leg of each of said bell cranks, said link means being adapted for longitudinal movement on said shaft whereby said bell cranks can be pivotally moved about their apex for raising or lowering said casings relative to the frame; ground wheels journalled on the lower leg end of each of said bell cranks; a pair of arms pivotally interconnecting said casings and the axle of the main support wheels for pivotally and REFERENCES CITED The following references are of record in the file of thispatent:

UNITED STATES PA'I'ENTS Number Name I Date 1,244,531 Menzenbach -Oct. 30, 1917 2,045,376 Stanelle June 2-3, 1936 2,141,805

White Dec. 27', 1938 

